okay....I bought this used Kent Marine 4 stage unit and it came with a 2 canister unit, making it a 6 stage RO/DI. I am not sure how old the DI & Carbon cartridges are or how old the RO cartridge is. I want to replace them all and add some sample points and pressure gauges. What would you suggest for cartridges and in what order would you put them in ?
Reverse Osmosis
- Thread starter BMan
- Start date
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okay....I bought this used Kent Marine 4 stage unit and it came with a 2 canister unit, making it a 6 stage RO/DI. I am not sure how old the DI & Carbon cartridges are or how old the RO cartridge is. I want to replace them all and add some sample points and pressure gauges. What would you suggest for cartridges and in what order would you put them in ?
BRS. You'll love it.
MaiReef
Valuable Member
5 is fine, but you could do 5 then 1 then a single carbon. BRS is where I get mine.
yup, they and melev have great videos and info, and also supplies. IMO dont worry about sample points dont make it more complex than it needs to be. A pressure gauge I would recommend though.
Opus
2500 Club Member
Personally I would go with 1 micron cartridges. Did you ask about the RO membrane when you bought it? Do you know for sure it wasn't upgraded at some point? I have an old Kent unit but I'm running a 90gpd membrane in it. If you know nothing about it then when you get a new RO membrane, be sure to buy a flow restrictor to match the membrane output you are buying.
Personally, I would go with a 1 micron sediment, then 2 1 micron carbon filters, 90gpd membrane, then 2 refillable DI cartridges. Save your money and don't buy the color changing. Also invest in a handheld TDS meter. Test your water after the first DI filter and when it hits 1 TDS, switch the 2 DI cartridges and refill the one that was originally in the first spot.
If you want to test your current setup, get the tds of your tap water and a reading after the RO membrane (after letting it run for several minutes). If your tds is 4% or less than the tap reading the ro membrane is still good.
Personally, I would go with a 1 micron sediment, then 2 1 micron carbon filters, 90gpd membrane, then 2 refillable DI cartridges. Save your money and don't buy the color changing. Also invest in a handheld TDS meter. Test your water after the first DI filter and when it hits 1 TDS, switch the 2 DI cartridges and refill the one that was originally in the first spot.
If you want to test your current setup, get the tds of your tap water and a reading after the RO membrane (after letting it run for several minutes). If your tds is 4% or less than the tap reading the ro membrane is still good.
Spectrapure. only spectrapure. .5 sediment, .5 carbon, mega maxcap di, then enduro di for finishing. their filters and membranes are the best in the biz.
